[en] Some problems of controlling qualities about TLD measuring system, such as reading instrument, TL control instrument, anneal over, cooling instrument, calibration source and calibration method et al, were discussed. Some problems of measuring technologies were important but easily neglected when measuring, such as cleaning heating plates and filter slices, controlling anneal temperature and the method of timing for anneal were discussed also. These discuss maybe helpful to those who are interested in TLD's Technology. (authors)